Gh. Titeica 2009, problema 2

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mumble
Euclid
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Gh. Titeica 2009, problema 2

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Fie \( n\geq 2 \) un numar natural fixat. Determinati numerele complexe \( z,a \) de modul \( 1 \) astfel incat
\( z^{n+1}+az^{n}+1=0. \)

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